Car-truck.



Patented Apr. 24, |900. J. C. BARBER.

GAR TRUCK.

(pplication led may 7, 1898.)

3 Shaets-Shaet 2.

(No Model.)

l y 1 fand/nim ve-.7M

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co.. Hom-urna.. wumNcroN o c Patented Apr. 24, |900.

3 sham-sheet 3 J. C'. BARBER.

CAR TRUCK. (Aplication am my 7, 189s.)

THE nofws Punks co. Nova-uhm., wAsmNnToN. n. c.

(No Model.)

.Q @RN Nrrnn STATES PATENT 1OFFICE.,

JOHN C. BARBER, OF ST. PAUL, MINNESOTA.

CAR-TRUCK.

SPECIFICATION forming part of' Letters Patent No. 648,228, dated April24, 1900.

Application het May 7,1898. semina. 680,039. cto man.)

To all whom, it may concern:

Be it known that LJOHN'C. BARBER, a citizen of the United States,residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented certain new and useful Improvements in Oar-Trucks and I doherebyl declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention has forits object to provide an improved car-truck. i i ITo these ends my invention consists of the novel devices andcombinations of devices hereinafter described, and defined in theclaims.

The invention is illustrated in the accompanying drawings, wherein likenotations refer to like parts throughout the several views.

Figures l and 2 are respectively an end elevation and plan view of partof a truck containing my improvements. Fig. 3 is a perspective viewshowing frame. Fig. 4i is a similar view showing a part Aof thetruck-bolster. Fig. 5 is a view similar to Fig. 4, but with some of theparts removed. Fig. G is a View, partly in crossseetion and partly inelevation, through the improved truck, with some portions broken away;and Fig. 7 is a detail showing end of column-head- Fig. S is a detailinsectional elevation, illustrating one form of my improved side bearing;and Fig. 91's a viewsimilar to Fig. 8, showing a modified form of sidebearing.

The top bar d, bottom bar d', and trussbar d2 of the side frames of thetruck are of the customary form. The bottom bar d and the truss-bar d2at their over and underlying portions are embraced bya saddle b. On thesaddle b rest the columns Z7', suitably spaced apart from each other.The columns b are provided below with the saddle-like feet b2, whichembrace the saddle b. At their upper ends thecolumns Z9 have thelaterally-expanded portions4 h3 for securing the same to the top bar c,of the side frames. The said columns are also provided withlaterally-extended vertical webs or'ilanges h4, extending for a shortdistance above their feet portions b2 for securing the same to thecross-ties c, which part of the truck-Av are of angular form, as bestshown in Fig. '3.

The column-bolts h5 extend through the columns b, the saddle b, and allthebars of the side frames. As shown, they also extend through topwasher-plates h6. The columns bf are also bolted above to the top baroof the side frame by the reinforcing-bolts 117.

The cross-ties c, of angle form, as hitherto noted,`are rigidly securedto the flanges b4 of the columns ZJ', with the horizontal portions ofsaid kcross-ties resting on the saddle b. The cross-ties are alsosecured to the' said saddle side frame arev reinforced against theshearing strains'by the saddle-bars b and that the columns rest on thesaddles and are connected to the top and bottom bars'of the side framesnot only by the column-bolts b5 in the ordinary way, but by thereinforcing-bolts 57 abovewith .respect to the top bar Ct and bythereinforcing-bolts c" below with respect to the bottom bar a and thetruss-bar a2. Otherwisev stated, if the column-bolts should be shearedoff the different parts of the frame would remain rigidly connectedtogether. Moreover, the column-bolts b5 and the reinous that the bottomand the truss bar of the forcing-bolts c' extend through the threethicknesses of metal afforded by the saddle b and the overlapping partsof the bars ct and Co2. The cross-ties c, of angular form, located andconnected, as described, to the columns h', the saddle ZJ, and theside-frame bars d and d2, aiord an extremely rigid and strongcross-brace to the side frames. As a detail for the application of thetop reinforcingbolts 277 itmay be noted that the laterally-extendedheads b3 of the columns h are formed with downwardlyextended webssuitably spaced apart to receive and lock the nuts of thereinforcing-bolts bi when the bolts are in position, as best shown inFig. 7. The vertical ilanges of the cross-ties c, which con` neet theopposite side frames of the truck, are comparatively short in depth,or,otherwise stated, they do not extend to the entire height of the columnsb', like the ordinary transom. Nevertheless the said cross-ties `c invirtue IOO of their form coperate with my improved side frames abovedescribed to afford an eX- tremely rigid truck.

The spring-bases f are of the proper shape to rest on the saddles b andthe horizontal flanges of the cross-ties c between the columns h', asbest shown in Figs. l and 6. The said spring-basesf are provided withdownwardly-extended short central ribs f', which rest on the saddles Z),extended side flanges f2 of greater length than the central flanges f-'and spaced apart to embrace the. side of the saddles h. The side flangesf2 are of theV proper length in the horizont-al direction to workbetween the horizontal lian ges of the cross-ties c, as best shown inFig. l. Hence when the spring-bases f are in working position they7interlock with the saddles b against lateral displacement and with thecross-ties o against endwisedisplacement, and the load thereon is takenin part directly by the saddles b and in part directly b v thecross-ties c. It is obvious that this affords a very advantageous.distribution of the load. The spring-bases f are provided on their faceswith the male members f3 of telescoping spring-guides, the femalemembers f of which depend from the spring-caps f5. These spring-guidesf3 and f have telescoping engagement with each other, as best showninFig. 6, thereby permitting the necessary vertical motion, butpreventingr any lateral displacement of the bases and the caps under themot-ion from the springs f6, which surround the spring-studs f3 and f4.This is a radical improvement in the means for snpporting the requiredsprings f6 for taking the load from the bolster. It insures therectilinear action of the springs f3 and prevents any side motionthereof or torsional strain thereon. The spring-caps f3 are ofthe properform on their upper faces to serve as bearingplates for the rollers f7.Over the rollers f7 are mounted the top bearingplates f8, which areembraced and held by the anges h7 of the bolster end castings h4, aswill presently more fully appear. The bearing-surface for the rollers f7on the plates f5 and f8 are concavefor the same purpose as in my priorpatents.

The bolster is made up of a pair 'of channel-bars 71., set with theirhorizontal flanges facing each other, a top plate 7L', riveted orotherwise rigidly secured to said channel-bars, suitable cross-ties 7a2and 71,3, and suitable bolster end castings 7b4. The bolster endcastings 714 are of the proper form to fill the space between the sideand upper horizontal flanges of the channel-bars 7L and to be riveted orotherwise secured both to the vertical and horizontal portions of saidchannel-bars, as best shown in Figs. 1, 4, 5, and 6. The castings h areof less depth than the height of the vertical flanges of thechannel-bars 7L and are also provided ed to abut against bars 71, asbest shown with end flanges h5, adaptthe ends of the channelin Figs. 1and 4, and

and with downwardlya pivot-bolt p9,

serve as a name-plate. The castings 7b4 are also of the proper form toafford seats 7b for the upper bearing-plates f8 and havedownwardly-extended flan ges 71,7, adapted to elnbrace said plates f8,thereby h'oldingthe same in proper working position, as best shown inFig. G. The lower horizontal flanges of the channels h are cut away fora distance inward from their outer ends, as shown in Fig. 5.`

This permits the castings h to be raised into position between thechannel-bars h from below and also gives the necessary clearance for thebolster in respect to the springs,springcaps, and spring-bases.

The lower cross-ties h3 reinforce the channels 71` at the outer ends oftheir horizontal flanges, and the central cross-tie h2, which is ofangle form, reinforces the central part of the bolster below and alsoserves as the bottom guide for the center pin. (Not shown.)

lith this construction it is obvious that a cheap, rigid, andextremely-strong bolster is afforded of a design adapted to my improvedmeans for mounting the springs, as herein described, in myroller-motiontrucks.

The bolster is shown as provided with end stops 7, located at the outerends of the bolster, for cooperation with the outer surfaces of the topbars ct of the side frames. The said bolster is shown as equipped withone form of an improved side bearing of my invention. The for-m shown onthe bolster is the form illustrated in detail in Fig. 8. An-

other form thereof is illustrated in Fig. 9;

oth forms have the common feature of a tilting table p,carrying theside-bearing roller p' and under spring tension to assume its horizontalor normal position. 130th forms have the further common features of asuitable base p2 for the tilting table ofbox-like form and adapted toset in aboX-like casting p3, fixed to the bolster. :Between thetablebase 132 and the casting p3 is also placed a removableshimming-loloch` p4. shown on the bolster and in Fig. 8 the bearings forthe tilting table are afforded by a raised convex surface p5 on the basep2 and a concave surface@G for cooperating therewith, formed on the bossp7 of the table-casting. Spiral springs p8 are then placed under theopposite ends of the table for restoring the saine to normal position.In the form shown in Fig. 9 the bearings for the table are afforded byseated in the sides of the base p2 and extending through an elongatedhole 191,0 in the bearing-boss of the table, and a flat spring p iscentrally fixed to the basej, with its opposite ends applied to thetable on opposite sides of its pivot for restoring the same to normalposition. The action is substantially identical in both, although thefriction may be greater on one than on the other. Vith this tiltingtable as the bearing-plate for the roller it is obvious that the rollerwill adapt itself to the plane of the bolster in the bolsters forwardand backward travel and that when the side bearing is relieved from Inthe form IOO IIO

the bolster the table Will restore the roller to its central or normalposition, with the table horizontal, under the action of thetablesprings.

The feature of my invention herein disclosed which I deem to be'of themost importance is the feature affording guides for thebolster-supporting springs arranged to insure the vertical motionthereof, while preventing any lateral motion of the springs or anytorsional strain thereon from the bolster. It will be understood, ofcourse, thatthis feature is of special importance in my general type ofcar-trucks, wherein the bolster is mounted with freedom for both avertical motion and a lateral motion on rollers. Inasmuch as the bolsterthus moves laterally on rollers, it is a ymatter of large importance toprevent torsional strain on the springs. In one of my prior patents, toWit-No. 573,636, of date December 22, 1896-I accomplished that result byso mounting the springs and the bearingplates that the springs, togetherwith the upper bearing-plate for the rollers, were carried laterallywith the bolster, While at all times freedom was afforded for thecompression and expansion of the springs or the Vertical motion of thebolster in respect to said upper bearing-plate for the rollers. In mypresent invention it will be seen that I reach'ed the result namedwithout shifting the relations of the springs to the truck-frame fromthat shown in some of my earlier patents--such for example, as No.569,077, of date October 6, 1896. I believe that I am the first toaccomplish this result and do not restrict myself to the details ofconstruction herein shown for that purpose. It should further be notedthat if found desirable the telescoping guide-sections might be made ofthe proper form and fit to afford more or less friction in theirtelescoping action, thereby relieving the springs to that extent.

By the above-noted construction for mounting the springs and by thegeneral construction of the truck-frame and the bolster as hereindisclosed a car-truck is secured with lateral motion on rollers whichisextremely strong and is comparatively cheap.

. What I claim, and desire to secure by Letters Patent of the UnitedStates, is as follows: l. In a car-truck, the combination with the archand the truss bars, of the saddle-bars embracing the overlapping partsof the arch and bottom bars, and rigidly secured thereto by meansindependent of the column-bolts, the columns resting on said sides andconnecting the top bars to said truss and bottom bars and saddle-bars,colu mn-bol ts passed through said columns, top bars, truss-bars, bottombars, and saddle-bars, and the cross-ties of angular form resting on andrigidly secured to said saddle-bars and to said columns by meansindependent of said column-bolt, substantially as described.

2. In a car-truck, side frames composed of arch and truss bars andsaddle-bars embracing and reinforcing the overlapping parts of the trussand bottom bars beneath the columns, substantially as and for thepurposes set forth.

3. In a car-truck, the combination with the side frames having thesaddle-bars embracing the overlapping parts of the truss and bottombars, the columns resting on said saddlebars and connecting the top barsto said trussbars, bottom bars and saddles, of the crossties-of angularform resting on said saddlebars and secured to said columns with theirhorizontal flanges facing each other, and spring-bases constructed torest partly on said saddle-bars and partly on said cross-ties, andhaving fianges which interlock with the saddle-bars, to prevent lateraldisplacement, and with said tie-bars, to prevent longitudinaldisplacement, substantially as described.

4L. In car-trucks, a side bearing, comprising a tilting table underspring tension to assume its normal or horizontal position, and a rollermounted thereon as a bearing-surface, substantially as described.

5. In a car-truck,the columns secured to the top, arch and bottom barsof the side frames by the ordinary column-bolts, and also byreinforcing-bolts, and having on their heads iianges which serve aslocks to the nuts of said bolts, substantially as described.

6. The -combination with a truck-frame and bolster, of coperatingspring-plates between the same, provided each with a plurality ofprojecting guides formed integral with the said plates, the said guideson the two plates coperating and telescoping in pairs, 'and springsbetween said spring-plates held and guided by said telescoping guides,substantially as and for the purposes set forth.

7. The combination witha truck-frame and bolster, of spring-bases havingeach a plurality of guide-sections rising therefrom, with saidspring-bases resting on the truck-frame, spring-caps with a plurality ofdepending guide-sections that telescope one with each ofthe saidguide-sections rising from said spring-bases, springs between said basesand caps held and guided by said telescoping guide-sections, rollersresting in bearing-surfaces formed on the top faces-of said springcaps,and roller bearing-plates carried by the bolster and rest-ing on saidrollers, subst-antially as and for the purposes set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN C. BARBER.

Witnesses:

LYMAN W. BARBER, WM. J. PETTEE.

IOC

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